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直播稻在本场种植推广中,妨碍生产的主要问题是杂草危害和防除困难。经1998、1999二年来的试验示范,提出水稻直播田杂草防除的“一封二杀”技术。施实后基本控制草害,保证水稻生产。 “一封二杀”的化除技术是依照水稻生长历期和杂草发生实情而制定的。其基本操作程序如下: “一封”在直播稻播后2至3天期时,每亩用扫弗特30%乳油100毫升。兑水进行全国封闭处理防除将要萌动的杂草。施后对稗草防效
Direct Sowing Rice In the promotion of planting in this field, the main problems that hinder the production are weed hazards and prevention and control difficulties. After 1998 and 1999 two years of pilot demonstration, put forward the direct seeding weeds in rice “a second kill” technology. After the implementation of the basic grass-roots control to ensure rice production. The technology of “one kill” is based on the growth of rice and the actual occurrence of weeds. The basic operating procedures are as follows: “a ” in the broadcast after the broadcast 2 to 3 days, 30% EC with 30% EC cream EC. Duishui closed the country to deal with the control of weeds to be germinated. After the barnyard grass control effect